A navy soldier patrols on a soccer field during an operation to occupy the Mare slum complex in Rio de Janeiro, Brazil, Saturday, April 5, 2014. More than 2,000 Brazilian Army soldiers moved into the Mare slum complex early Saturday in a bid to improve security and drive out the heavily armed drug gangs that have ruled the sprawling slum for decades.(AP Photo/Felipe Dana)

Photo: Felipe Dana, Associated Press

A navy soldier patrols on a soccer field during an operation to...

A navy soldier patrols on a soccer field during an operation to... Photo-6126396.83358 - SFGate

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Ukrainians lay on a store's floor, acting as dead bodies in a flash mob action protesting against buying of the Russian goods in Kiev, Ukraine, Saturday, April 5, 2014. Writing on posters reads "Boycott the Russian (goods), don't feed the occupants!" Following Russia's annexation of Ukraine's Crimean peninsula, the diplomatic strain between Ukraine and Russia is now turning into a trade war. (AP Photo/Efrem Lukatsky)

Photo: Efrem Lukatsky, Associated Press

Ukrainians lay on a store's floor, acting as dead bodies in a flash...

Ben Collett, 3, eyes an egg to pick up during the Easter egg hunt at Camp Jordan Park in East Ridge, Tenn., on Saturday, April 5, 2014. The event was put on by Venue Church. (AP Photo/Chattanooga Times, Erin O. Smith)

People fight with pillows at the University's Square on World Pillow Fight Day 2014 in Bucharest on April 5, 2014. TOPSHOTS/AFP PHOTO/DANIEL MIHAILESCUDANIEL MIHAILESCU/AFP/Getty Images

Photo: Daniel Mihailescu, AFP/Getty Images

People fight with pillows at the University's Square on World...

People fight with pillows at the University's Square on World... Photo-6126392.83358 - SFGate

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Brazilian soldiers patrol the street during security operations in Vila Pinheiro --part of the Mare shantytown complex near the Galeao (Antonio Carlos Jobim) international airport-- in the north suburb of Rio de Janeiro on April 5, 2014. Thousands of soldiers --including some 2,000 paratroopers, 450 sailors and 200 military police-- in armored vehicles, trucks and on foot entered one of Rio de Janeiro's most notorious slums to provide security less than three months before the World Cup and until July 30. TOPSHOTS/AFP PHOTO/CHRISTOPHE SIMONCHRISTOPHE SIMON/AFP/Getty Images

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Afghan women queue outside a school to vote in presidential elections in the northwestern city of Herat on April 5, 2014. Afghan voters went to the polls to choose a successor to President Hamid Karzai, braving Taliban threats in a landmark election held as US-led forces wind down their long intervention in the country. AFP PHOTO/AREF KARIMIAref Karimi/AFP/Getty Images

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New recruits of the Jammu and Kashmir Light Infantry Regiment (JKLIR) shout during the passing out parade at an Indian Army base on outskirts of Srinagar on April 5, 2014. Some 310 recruits were formally inducted into the Indian Army's JKLIR after completing 49 weeks of training. At least 47,000 people have died as a result of the insurgency in highly militarised Indian Kashmir, according to official count with separatists putting the toll twice as high. AFP PHOTO/Rouf BHATROUF BHAT/AFP/Getty Images

Photo: Rouf Bhat, AFP/Getty Images

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New recruits of the Jammu and Kashmir Light Infantry...

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New recruits of the Jammu and Kashmir Light Infantry... Photo-6126388.83358 - SFGate

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A firefighter works on the scene of a multiple alarm fire at the popular Lakeview Pavilion in Foxboro, Mass., Saturday, April 5, 2014. A wedding was taking place at the time of the fire. (AP Photo/The Sun Chronicle, Mark Stockwell)

Photo: Mark Stockwell, Associated Press

A firefighter works on the scene of a multiple alarm fire at the...

A firefighter works on the scene of a multiple alarm fire at the... Photo-6126385.83358 - SFGate

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DARRINGTON, WA - APRIL 5: People hold candles during a vigil for mudslide victims at the Darrington Community Center on April 5, 2014 in Darrington, Washington. A March 22 mudslide killed at least 30 and left many missing. (Photo by David Ryder/Getty Images)

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An Afghan woman leaves the booth after casting her vote at a poliing station in the northwestern city of Herat on April 5, 2014. Afghan voters went to the polls to choose a successor to President Hamid Karzai, braving Taliban threats in a landmark election held as US-led forces wind down their long intervention in the country. AFP PHOTO/AREF KARIMIAref Karimi/AFP/Getty Images

Family photographs of some of those who died hang in a display in the Kigali Genocide Memorial Centre in Kigali, Rwanda Saturday, April 5, 2014. The country will commemorate on April 7, 2014 the 20th anniversary of the genocide when ethnic Hutu extremists killed neighbors, friends and family during a three-month rampage of violence aimed at ethnic Tutsis and some moderate Hutus, leaving a death toll that Rwanda puts at 1,000,050. (AP Photo/Ben Curtis)

Photo: Ben Curtis, Associated Press

Family photographs of some of those who died hang in a display in...

Family photographs of some of those who died hang in a display in... Photo-6126393.83358 - SFGate

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Indian Hindu devotees offer prayers during the Chaiti Chhath festival in Siliguri on April 5, 2014. Devotees pay obeisance to both the rising and the setting sun in the Chhath festival when people express their thanks and seek the blessings of the forces of nature, mainly the sun and river. AFP PHOTO /Diptendu DUTTADIPTENDU DUTTA/AFP/Getty Images

Worker prepare to remove derailed trains in Tasikmalaya, West Java, Indonesia, Saturday, April 5, 2014. A passenger train hit mounds of mud triggered by a landslide and derailed in central Indonesia, killing at least three people and injuring seven, a railway official said Saturday. (AP Photo/Erwin Gobel)

Photo: Erwin Gobel, Associated Press

Worker prepare to remove derailed trains in Tasikmalaya, West Java,...

Anselma Lopez, is consoled by Miguel Guerra outside the immigration detention center in Eloy, Ariz., during a protest of the record numbers of deportations that have taken place under President Barack Obama's administration on Saturday, April 5, 2014. Anselma Lopez, has been fighting to bring home her son, Elder Gomez-Lopez, who is been at Eloy Detention Center for past 2 1/2 years. (AP Photo/The Arizona Republic,Nick Oza ) MARICOPA COUNTY OUT; MAGS OUT; NO SALES

Photo: Nick Oza, Associated Press

Anselma Lopez, is consoled by Miguel Guerra outside the immigration...

HOUSTON, TX - APRIL 05: L.J. Hoes #28 of the Houston Astros leaps at the wall but cannot make a play on a home run ball hit by Josh Hamilton #32 of the Los Angeles Angels of Anaheim in the fifth inning at Minute Maid Park on April 5, 2014 in Houston, Texas. (Photo by Bob Levey/Getty Images)